<head>
  <link rel="stylesheet" href="lots_of_background_colors.css" />
</head>
<body>
  <div class="darkgray">
    <div class="darkblue">
      <img class="maroon"></img>
      <div class="darkgreen">
    <img class="gray"></img>
      </div>
    </div>
    <img class="black"></img>
    <img class="brown"></img>
    <div class="pink">
      <img class="orange"></img>
      <img class="violet"></img>
    </div>
    <div class="lightgray">
      <img class="blue"></img>
      <img class="red"></img>
    </div>
  </div>
</body>
